[R] Using dll with Visual Studio Compiler

[Prof Brian Ripley]

On Tue, 12 Jun 2007, Ian McCarthy wrote:

> Hi,
>
> I have created a dll in Fortran and used the Visual Studio 2005 
> Compiler. I've read that certain problems can arise based on the

Since Visual Studio does not create Fortran, that's a bit vague.  And let 
us assume you are on Win32, but you failed to say.

> compiler used and that these problems can sometimes cause R not to be 
> able to access everything appropriately, but I've not found how to fix 
> any of these problems. Specifically, after using dyn.load, I know the 
> dll has been loaded because it is listed in getLoadedDLLs(), but when I 
> try is.loaded("subroutine name"), it returns FALSE. I saw that this was 
> mentioned in the manual, but it too offers little help for a solution.

'The manual'?  If you mean an R manual, it offers a lot more details than 
you are giving us to go on.  Try using VS or pedump to see what is 
exported from your DLL under what names.  (pedump is in the R tools kit as 
well as elsewhere.)


> Any advice would be greatly appreciated.
>
> Cheers,
>
> Ian McCarthy
> Department of Economics
> Indiana University
> 100 S. Woodlawn
> Bloomington, IN 47405-7104
> http://mypage.iu.edu/~imccarth<http://mypage.iu.edu/~imccarth>
> imccarth at indiana.edu<mailto:imccarth at indiana.edu>
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>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595